OPTICAL RECORDING MEDIUM CAPABLE OF PERFORMING RECORDING/REPRODUCING OPERATIONS AND OPTICAL RECORDING METHOD THEREOF

PURPOSE: An optical recording medium capable of performing recording/reproducing operations is provided to apply a buffering layer to be recordable, thereby increasing productivity as well as lowering costs without using an expensive organic pigment. CONSTITUTION: A substrate(10) has a pre-groove fo...

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Bibliographische Detailangaben
Hauptverfasser: KIM, JONG SEONG, MIN, GYEONG SEON, HUH, YEONG JAE, MAASKANT NICO, VAN WIJK FREDDY GERHARD HENDRI, DUBBELDAM GERRIT CORNELIS
Format: Patent
Sprache:eng ; kor
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Zusammenfassung:PURPOSE: An optical recording medium capable of performing recording/reproducing operations is provided to apply a buffering layer to be recordable, thereby increasing productivity as well as lowering costs without using an expensive organic pigment. CONSTITUTION: A substrate(10) has a pre-groove for guiding a beam while recording. A thin metal film(20) is formed on the substrate(10). A buffering layer(30) and a reflective layer(40) are sequentially accumulated on the thin metal film(20). A protecting layer is additionally accumulated. A laser beam condensed while recording heats the thin metal film(20). The heat is transmitted to the substrate(10) and the buffering layer(30). Portions of the substrate(10) neighboring to the heated thin metal film(20) are transformed by thermal expansion. The heated part of the thin metal film(20) is expanded toward the buffering layer(30). 본 발명은 기록/재생이 가능한 광기록 매체에 관한 것으로서, 상세히는 특히 금속성 기록층을 가지는 기록/재생이 가능한 컴팩트 디스크(CD)에 관한 것이다. 본 발명의 광기록 매체는, 기판과; 상기 기판위에 형성되는 금속 박막과; 상기 금속 박막의 위에 마련되는 반사막과; 상기 박막층과 반사막의 사이에 개재되는 열적 변형이 용이한 완충층;을 구비한다. 이러한 본 발명에 의하면, 본 발명의 매체는 CD와의 호환이 가능하며, 저렴하고 생산성이 높은 기록/재생 가능하며, 또한 높은 반사율과 기록 신호를 가지며, 기록의 안정성이 향상된 기록/재생 가능하다.